| NWS Forecast for: St. Charles County Issued by: National Weather Service Saint Louis, MO Last Update: 220 PM CDT Mon Sep 1 2025 |  |
| This Afternoon: Partly sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph. Tonight: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph. Tuesday: Mostly sunny. Highs around 80. North winds around 5 mph. Tuesday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 50s. Northwest winds around 5 mph in the evening, becoming light and variable. Wednesday: Sunny. A slight chance of showers in the afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Wednesday Night: Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 70 percent. Thursday: Mostly sunny. Cooler with highs in the lower 70s. Thursday Night: Mostly clear. Lows in the mid 50s. Friday: Mostly sunny. Highs in the upper 70s. Friday Night: Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows around 50. Chance of rain 20 percent. Saturday Through Sunday: Mostly clear. Highs in the mid 70s. Lows around 50. | |
| Zone Forecast: St. Charles County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |